GM1
Elite Veteran
Location: Tallahassee, Florida US
| ReBreak inPaul,
If you have a low time motor and switch to Wildcat 30%, you probably won't have to do much to get the motor to run well, usually you open the top end just a fuzz but all that depends on how you had the model needled in the first place, but if the motor has been run a lot, 25+ gallons, it has taken a heat set, that is, it's used to running at one temperature in a hover and another in idle up, when you switch to Wildcat with a different oil package, the operating temps are different (usually lower) in both hover and idle up, the sleeve and piston expand differently and actually will have to refit themselves to run optimally with the new fuel so for the first couple of gallons, SOMETIMES the motor runs a little rough initially but will come around. My VERY high time OS32SX which was really down on power from wear with CP30% now runs strongly again on WC30%, lower operating temp and thicker oil have tightened the tolerances and are allowing it to make more power. Now this won't last forever but was an interesting benefit. If you think about it, switching back and forth to different fuels will create all kinds of wear problems since the operating temp keeps changing and the motor may never settle down. Since a new or low time motor has not taken a heat set (yet) you can change fuels and probably not notice much difference in ease of use, though power, smoke, and longevity could be different.
This has been an interesting thread without getting into fuel bashing. And since all the major fuel brands are good quality and work OK, that's a good thing.
On a dog sled team, if you're not the lead dog, the view never changes. |
and they use a light weight oil that is why theres has 23% is that better no because you lose burnable nitro&meth so all you get is a smoke cloud and more smoke doesnt mean you are protecting the motor it is the burn off emission get it. on the wildcat side they use a med weight oil which means you must run a richer needle 
